Wouldn't the second event there that he wants to be triggered need to match the trigger condition of the first? The first screenshot shows that you trigger "Welc 1". The second screenshot shows that the event can only be triggered if something or someone had already triggered "Welc 2". I'd just change the "Welc 2" to "Welc 1" so that it triggers as you've said you want it to.
Likewise, wouldn't it be easier to put the Self Switch from the first screenshot into the "Conditional Branch" as well? You know, to ensure that it triggers as it should? Otherwise, if the player is not standing on the required field, it would simply trigger the "Self Switch" instead and skip the other switch.
I'm not really sure how that all works, actually... But, the eventing you're doing looks really odd to me.